Independent guide: Rope choice depends on loads, hardware and use. Check the rope maker's data and your hardware sizes.
Quick answer
Running rigging is every line that moves: halyards hoist sails, sheets trim them, and reefing, outhaul, vang, cunningham, traveller and furling lines shape and control them. Lines wear through chafe, UV and heat far more than through age, so inspection focuses on where each line passes through sheaves, clutches, winches and fairleads. Replace a line when the cover is worn through, the core is damaged, it has hardened from UV, or stretch is spoiling sail shape.
The main lines
| Line | Job | Priority |
|---|---|---|
| Main and headsail halyards | Hoist and tension the luff | Low stretch — see halyards |
| Sheets | Trim sails | Grip and durability — see sheets |
| Reefing lines | Reduce mainsail area | Chafe resistance — see reefing lines |
| Furling lines | Roll headsails | Reliability; a failure matters in a blow |
| Control lines | Outhaul, vang, cunningham, traveller | Low friction — see control lines |
Rope materials
- Polyester — durable, UV-tolerant and economical; good for sheets and control lines. See polyester rope.
- Dyneema (HMPE) — very strong and low-stretch; used in halyard cores, strops and soft shackles. See Dyneema rope.
- Blends and performance fibres — used on racing boats for specific loads.
- Construction — double braid (cover and core), single braid, and three-strand, each suited to different uses. See the rope guide.
Sizing
Rope diameter must suit the load, the sheaves, the clutches and the crew's hands. Too thin slips in clutches; too thick jams sheaves. See rope size.
Inspection
Run each line through your hands looking for:
- cover worn through or glazed at clutches and winches
- core showing or lumps and flat spots
- stiffness and fading from UV
- damage at splices and knots
- chafe where lines exit the mast and boom
See yacht rope chafe.
Services
- Running rigging replacement
- Rope splicing
- Deck hardware for clutches, blocks and winches
By boat type
- Racing yachts replace lines often and use high-modulus fibres.
- Catamarans have long line runs with high friction.
- Liveaboards prioritise UV and chafe resistance.
Frequently asked questions
What is the difference between standing and running rigging?
Standing rigging is the fixed wire, rod or synthetic stays and shrouds that hold the mast up. Running rigging is the ropes that move — halyards, sheets, reefing lines and control lines — used to hoist, trim, reef and furl sails.
What rope is best for yacht halyards?
Low-stretch rope with a high-modulus core, such as Dyneema, holds luff tension and sail shape best. The cover must suit the clutches and winches it runs through. Polyester double braid is a durable, economical alternative for smaller or cruising boats.
Common questions
- How do I choose halyard rope?
Choose halyard rope by matching low-stretch core fibre to the load, then sizing for the hardware and hands that will use it rather than for strength alone. Most cruising halyards are oversized for grip and clutch compatibility, not because the load requires it. Confirm the rope suits your clutches and sheaves before buying.
- How do I make an emergency rigging repair at sea?
Make an emergency rigging repair by first reducing load: bear away or tack to put the damaged side to leeward, then substitute a halyard, spare wire or Dyneema lashing for the failed component, tension it progressively, and sail conservatively to the nearest safe port. Emergency repairs restore enough strength to get in, not to resume normal sailing.